Merge branch 'sh/stable-updates'

7 files changed, 46 insertions, 27 deletions

diff --git a/arch/powerpc/kernel/head_8xx.S b/arch/powerpc/kernel/head_8xx.S
index 678f98cd5e64..3ef743fa5d7c 100644
--- a/arch/powerpc/kernel/head_8xx.S
+++ b/arch/powerpc/kernel/head_8xx.S
@@ -542,11 +542,11 @@ DARFixed:/* Return from dcbx instruction bug workaround, r10 holds value of DAR
 FixupDAR:/* Entry point for dcbx workaround. */
         /* fetch instruction from memory. */
         mfspr   r10, SPRN_SRR0
+        andis.  r11, r10, 0x8000        /* Address >= 0x80000000 */
         DO_8xx_CPU6(0x3780, r3)
         mtspr   SPRN_MD_EPN, r10
         mfspr   r11, SPRN_M_TWB /* Get level 1 table entry address */
-        cmplwi  cr0, r11, 0x0800
-        blt-    3f              /* Branch if user space */
+        beq-    3f              /* Branch if user space */
         lis     r11, (swapper_pg_dir-PAGE_OFFSET)@h
         ori     r11, r11, (swapper_pg_dir-PAGE_OFFSET)@l
         rlwimi  r11, r10, 32-20, 0xffc /* r11 = r11&~0xffc|(r10>>20)&0xffc */
@@ -768,12 +768,12 @@ start_here:
  */
 initial_mmu:
         tlbia                   /* Invalidate all TLB entries */
-#ifdef CONFIG_PIN_TLB
+/* Always pin the first 8 MB ITLB to prevent ITLB
+   misses while mucking around with SRR0/SRR1 in asm
+*/
         lis     r8, MI_RSV4I@h
         ori     r8, r8, 0x1c00
-#else
-        li      r8, 0
-#endif
+
         mtspr   SPRN_MI_CTR, r8 /* Set instruction MMU control */
 
 #ifdef CONFIG_PIN_TLB
diff --git a/arch/powerpc/kernel/pci_of_scan.c b/arch/powerpc/kernel/pci_of_scan.c
index 7311fdfb9bf8..4aa17401657b 100644
--- a/arch/powerpc/kernel/pci_of_scan.c
+++ b/arch/powerpc/kernel/pci_of_scan.c
@@ -123,6 +123,7 @@ struct pci_dev *of_create_pci_dev(struct device_node *node,
 {
         struct pci_dev *dev;
         const char *type;
+        struct pci_slot *slot;
 
         dev = alloc_pci_dev();
         if (!dev)
@@ -140,6 +141,11 @@ struct pci_dev *of_create_pci_dev(struct device_node *node,
         dev->devfn = devfn;
         dev->multifunction = 0;         /* maybe a lie? */
         dev->needs_freset = 0;          /* pcie fundamental reset required */
+        set_pcie_port_type(dev);
+
+        list_for_each_entry(slot, &dev->bus->slots, list)
+                if (PCI_SLOT(dev->devfn) == slot->number)
+                        dev->slot = slot;
 
         dev->vendor = get_int_prop(node, "vendor-id", 0xffff);
         dev->device = get_int_prop(node, "device-id", 0xffff);
@@ -160,10 +166,14 @@ struct pci_dev *of_create_pci_dev(struct device_node *node,
         dev->error_state = pci_channel_io_normal;
         dev->dma_mask = 0xffffffff;
 
+        /* Early fixups, before probing the BARs */
+        pci_fixup_device(pci_fixup_early, dev);
+
         if (!strcmp(type, "pci") || !strcmp(type, "pciex")) {
                 /* a PCI-PCI bridge */
                 dev->hdr_type = PCI_HEADER_TYPE_BRIDGE;
                 dev->rom_base_reg = PCI_ROM_ADDRESS1;
+                set_pcie_hotplug_bridge(dev);
         } else if (!strcmp(type, "cardbus")) {
                 dev->hdr_type = PCI_HEADER_TYPE_CARDBUS;
         } else {
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index c930ac38e59f..7b816daf3eba 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -554,18 +554,6 @@ void exit_thread(void)
 
 void flush_thread(void)
 {
-#ifdef CONFIG_PPC64
-        struct thread_info *t = current_thread_info();
-
-        if (test_ti_thread_flag(t, TIF_ABI_PENDING)) {
-                clear_ti_thread_flag(t, TIF_ABI_PENDING);
-                if (test_ti_thread_flag(t, TIF_32BIT))
-                        clear_ti_thread_flag(t, TIF_32BIT);
-                else
-                        set_ti_thread_flag(t, TIF_32BIT);
-        }
-#endif
-
         discard_lazy_cpu_state();
 
         if (current->thread.dabr) {
diff --git a/arch/powerpc/kernel/rtas-proc.c b/arch/powerpc/kernel/rtas-proc.c
index 1be9fe38bcb5..8777fb02349f 100644
--- a/arch/powerpc/kernel/rtas-proc.c
+++ b/arch/powerpc/kernel/rtas-proc.c
@@ -262,19 +262,19 @@ static int __init proc_rtas_init(void)
         if (rtas_node == NULL)
                 return -ENODEV;
 
-        proc_create("ppc64/rtas/progress", S_IRUGO|S_IWUSR, NULL,
+        proc_create("powerpc/rtas/progress", S_IRUGO|S_IWUSR, NULL,
                     &ppc_rtas_progress_operations);
-        proc_create("ppc64/rtas/clock", S_IRUGO|S_IWUSR, NULL,
+        proc_create("powerpc/rtas/clock", S_IRUGO|S_IWUSR, NULL,
                     &ppc_rtas_clock_operations);
-        proc_create("ppc64/rtas/poweron", S_IWUSR|S_IRUGO, NULL,
+        proc_create("powerpc/rtas/poweron", S_IWUSR|S_IRUGO, NULL,
                     &ppc_rtas_poweron_operations);
-        proc_create("ppc64/rtas/sensors", S_IRUGO, NULL,
+        proc_create("powerpc/rtas/sensors", S_IRUGO, NULL,
                     &ppc_rtas_sensors_operations);
-        proc_create("ppc64/rtas/frequency", S_IWUSR|S_IRUGO, NULL,
+        proc_create("powerpc/rtas/frequency", S_IWUSR|S_IRUGO, NULL,
                     &ppc_rtas_tone_freq_operations);
-        proc_create("ppc64/rtas/volume", S_IWUSR|S_IRUGO, NULL,
+        proc_create("powerpc/rtas/volume", S_IWUSR|S_IRUGO, NULL,
                     &ppc_rtas_tone_volume_operations);
-        proc_create("ppc64/rtas/rmo_buffer", S_IRUSR, NULL,
+        proc_create("powerpc/rtas/rmo_buffer", S_IRUSR, NULL,
                     &ppc_rtas_rmo_buf_ops);
         return 0;
 }
diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c
index a521fb8a40ee..c2ee14498077 100644
--- a/arch/powerpc/kernel/smp.c
+++ b/arch/powerpc/kernel/smp.c
@@ -619,4 +619,16 @@ void __cpu_die(unsigned int cpu)
         if (smp_ops->cpu_die)
                 smp_ops->cpu_die(cpu);
 }
+
+static DEFINE_MUTEX(powerpc_cpu_hotplug_driver_mutex);
+
+void cpu_hotplug_driver_lock()
+{
+        mutex_lock(&powerpc_cpu_hotplug_driver_mutex);
+}
+
+void cpu_hotplug_driver_unlock()
+{
+        mutex_unlock(&powerpc_cpu_hotplug_driver_mutex);
+}
 #endif
diff --git a/arch/powerpc/kernel/swsusp_32.S b/arch/powerpc/kernel/swsusp_32.S
index b47d8ceffb52..b0754e237438 100644
--- a/arch/powerpc/kernel/swsusp_32.S
+++ b/arch/powerpc/kernel/swsusp_32.S
@@ -303,7 +303,7 @@ END_MMU_FTR_SECTION_IFSET(MMU_FTR_USE_HIGH_BATS)
         lis     r4,0x1000
 1:      addic.  r4,r4,-0x1000
         tlbie   r4
-        blt     1b
+        bgt     1b
         sync
 
         /* restore the MSR and turn on the MMU */
diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index 9ba2cc88591d..6c6093d67f30 100644
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -903,12 +903,21 @@ static void decrementer_set_mode(enum clock_event_mode mode,
                 decrementer_set_next_event(DECREMENTER_MAX, dev);
 }
 
+static inline uint64_t div_sc64(unsigned long ticks, unsigned long nsec,
+                                int shift)
+{
+        uint64_t tmp = ((uint64_t)ticks) << shift;
+
+        do_div(tmp, nsec);
+        return tmp;
+}
+
 static void __init setup_clockevent_multiplier(unsigned long hz)
 {
         u64 mult, shift = 32;
 
         while (1) {
-                mult = div_sc(hz, NSEC_PER_SEC, shift);
+                mult = div_sc64(hz, NSEC_PER_SEC, shift);
                 if (mult && (mult >> 32UL) == 0UL)
                         break;